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sabnor
10 Posts |
 Posted - 19 Nov 2015 : 21:29:32
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Hi, I'm in the process of buying this beatifil boat with a 75hp outboard engine.
This is a little big for my taste, but the current owner states the boat would not plane with a 30hp engine.
I enjoy cruising slowly on the water, and imagine I will keep prefering that over flying over it. Still it can be nice to have som power over the open areas of the ocean if caught in bad weather etc. I'm also semi-disabled, so the need could arise to get quickly to the shore.
I can only find images and videos of smaller engines, and none is planing according to my very limited knowledge on this area.
Does this need for a 75hp engine sound reasonable?
It's an old engine, so I imagine I will be replacing it with a newer, smaller one.
Does anyone have any idea of a good engine size for this use?
The brochure states 45-100hp for coastal use - but I guess that's old information, and engines have come a long way since then.
Any input is highly appreciated.
Thanks :)
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Knighty
United Kingdom
654 Posts |
Posted - 20 Nov 2015 : 07:43:14
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| Only thing I will say is check the transom as they are a sandwich with wood in the middle and it's not uncommon for the wood to rot in the middle. Not a big deal with a small river outboard but a large outboard would need that to be sound. |
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sabnor
10 Posts |
Posted - 20 Nov 2015 : 08:42:20
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Thanks, that's great to know.
Is there any tell-tell signs easy to reckognize if this needs replacing, or do one need to cut it open?
As far as I can see on the pictures it looks ok.
It's mounted a short piece of plywood between the engine and the transom (that is the ass-end of the boat, yes?) - is this original or a sign of an easy fix being made? |
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df
United Kingdom
5994 Posts |
Posted - 20 Nov 2015 : 11:56:01
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It's quite common for a spreader to be used between engine and outboard, it won't help if the transom is rotted inside though, best to drill a few small holes through the inner skin (not all the way through to outside) and see if the wood filler is wet, if the wood seems ok then fill the holes and don't panic otherwise you will need to strip the grp off (preferably the inner skin) and replace the wood filler.
Power wise although engines have moved on the boat is still the same shape/weight and the water is still the same density so it will still take the same horsepower to get it moving quickly, I'd go for at least 50hp for sea work, a 4 stroke will be better for slower use but heavier, that said you'll need to carry more fuel for a 2 stroke.
If the 75 is a good engine stick with it and see if you can live with the fuel consumption.
Of course the safety gear and skipper need to be sea worthy as well as the hull and engine(sorry don't know your experience level) ie. lifejackets/flares/vhf/day-skipper course.
Where abouts are you planning on cruising?
NBAS--The communal colostomy bag of the boating community.
Visit leomagill.co.uk |
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sabnor
10 Posts |
Posted - 20 Nov 2015 : 15:40:29
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Thank you for sharing :)
50hp sounds better than 75hp - was looking at some 60s, but they use about 20 liters pr hour at full throttle and about 10 at -2000 rpms according to a magazine I found.
It just seems alot. I see many use a smaller motor for fishing and cruising, and power up the big one for getting there.. Might be a way to go.
I would prefer an indoor diesel, but my health prevents me from doing any service in those awkward positions - so outboard it is.
If I decide to buy I will run the 75 until it dies or I find it to expencive to have.
I mind running cost more than purchase cost.
Is there any good reasons for using 2 stroke over 4 stroke except perhaps easier maintenance?
I have been around boats most part of my youth - but never regulary - so I would say I have low to medium experience with boats, and most of it is over 20 years old.
That is; I have rented about 20 times, and spent a couple of whole summers in smaller boats.
I have a humble attitude towards the sea - I know it's very powerful and needs to be treated with respect.
I read books and take online tests, and I'm very safety oriented in general - I will also buy a vhf and get the certification very soon.
I'm located on the south-western part of Norway, shielded by alot of islands and fjords so I can sail for a long time without getting exposed to the open sea. |
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cliveshep
Thailand
1324 Posts |
Posted - 21 Nov 2015 : 00:52:42
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Buy and fit a bracket and get another smaller engine to hang on it in case you break dowm. You can also use the smaller engine for trolling around fishing.
NEVER go to sea with only one engine.
Without in any way prejudicing the above, i.e. you still need a bracket and auxillary engine, have you considered getting rid of the big outboard, and fillling in the transom and fitting an inboard engine and outdrive? Much more reliable and much cheaper to run and you don't have to worry about the quality of the fillers in your transom.
Finally living the dream!
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sabnor
10 Posts |
Posted - 21 Nov 2015 : 11:43:42
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Thanks for replying.
I started out wanting for that kind of engine (well, I still want it), but my health prevents me from doing any work on an engine mounted this low - I need to stand up, more or less, when working.
With an outboard enginge I can dismount it, bring it home to my garage, and work on it for however long time it takes - with an inboard I'm forced to be in the boat while doing the work. That would seriusly limit the time I could put into it considering all the breaks I need to have.
I have also looked at 5-9hps with bracket both for safety and fueleconomy, so I'm with you there. |
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Deano
United Kingdom
1843 Posts |
Posted - 21 Nov 2015 : 18:28:43
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quote:
Originally posted by cliveshep
NEVER go to sea with only one engine.
Most comercial fishermen do, every day!!
Dean - Boating on the Great Ouse.
Freeman 32 "Liberty"
See the photos http://www.flickr.com/photos/54758027@N00/ |
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Deano
United Kingdom
1843 Posts |
Posted - 21 Nov 2015 : 18:33:33
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quote:
Originally posted by sabnor
Is there any good reasons for using 2 stroke over 4 stroke except perhaps easier maintenance?
A 2 stroke will produce much more power for it's weight, but will use much more fuel. They also need 2 stroke oil adding to the fuel which can cause some emissions. They really HATE running at low speeds. No new 2 strokes can be sold for pleasure boating...
A 4 stroke will be heavier for the same power output. Is more complicated internally and requires more careful and specialist servicing. They cannot be laid down on either side. Many can only be transported one way up.
Dean - Boating on the Great Ouse.
Freeman 32 "Liberty"
See the photos http://www.flickr.com/photos/54758027@N00/ |
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IanM
United Kingdom
2238 Posts |
Posted - 21 Nov 2015 : 20:18:22
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| I'm not sure how far through the boat purchase process you are but I have to say that if you think you will be changing the engine then it would be more economical to buy a different boat with the engine you want. A new engine can cost more than a boat... |
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stratford4528
United Kingdom
414 Posts |
Posted - 21 Nov 2015 : 20:31:36
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| If I was looking for a boat I would go for a diesel inboard. Far cheaper to run |
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sabnor
10 Posts |
Posted - 21 Nov 2015 : 23:16:49
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quote:
Originally posted by Deano
A 2 stroke will...
Thanks for very useful information.
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sabnor
10 Posts |
Posted - 21 Nov 2015 : 23:22:18
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stratford4528:
As for choosing an inboard diesel; my health can't handle it, so it will just increase the service cost as I have to pay for everything done to it.
I know this is not ideal - I was actually looking at 24 feet boats with inboard engines, but as I thought about it I knew I couldn't handle it in the long range as the situation is now.
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sabnor
10 Posts |
Posted - 21 Nov 2015 : 23:36:36
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IanM:
I can stop at any time - It's not set in stone. I spent most of the year looking for a suitable boat, and can spend a year more if need be. I don't have to have everything I want - wanting it can be rewarding enough.
For now I gather as much information as I can before choosing.
I was looking at engines with boats attached before I came over this listing.
I instantly liked the boat - I have never seen it before - it's like a smaller version of what I really wish for if everything else was good.
The boat is listed at a low asking price - the engine is almost included - and the only one I have seen on the market so far.
The reason I ask about the engine is because it's old, and doesn't look too good from pictures. Maybe it will run a month, a year, two or five - I try to gather info before it breaks down.
Ideally I will never need to replace it.
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cliveshep
Thailand
1324 Posts |
Posted - 22 Nov 2015 : 02:30:53
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quote:
Originally posted by Deano
quote:
Originally posted by cliveshep
NEVER go to sea with only one engine.
Most comercial fishermen do, every day!!
Dean - Boating on the Great Ouse.
Freeman 32 "Liberty"
See the photos http://www.flickr.com/photos/54758027@N00/
There's considerable difference between an ancient Johnson 2-stroke and a nice Lister or Gardner rumbling away down below and reliability is rock solid. I've done the fishing bit - one Gardner equals any 50 outboards in my book.
Finally living the dream!
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stratford4528
United Kingdom
414 Posts |
Posted - 22 Nov 2015 : 20:04:34
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| I have just fitted a 25 hp 3 cylinder Kubota diesel in my 32. I would say it wont need any major work on it for 20 years +. Red Diesel at £-50p a litre. Also plenty of extra charging power for the batteries and free hot water if needed. |
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Norman 20 Engine choice for coastal use
